i want to thank john krasinski, mike birbiglia. apologies to matt damon, although he did slip in tonight. tomorrow night, zachary knighton and music from dan deacon. their album, and extremely dangerous. they are dealing with a suspect who may be armed. >> the warning going out to the hundreds of students locked down at cal state fullerton right now. i'm carolyn johnson. >> i'm dan ashley. it is a tense scene that has been playing out for hours down south. police have the building surrounded as officers search for a man they suspect is armed and dangerous. this is all happening on the cal state university at fullerton campus southeast of downtown los angeles. >> i believe the armed suspect is in the building. >> reporter: police and the s.w.a.t team went from building to building searching for one and possibly two suspects. the school tweeted an alert to students and employers to remain on lock down. people outside were told to evacuate immediately. students barricaded the doors to their classrooms and turned down the rights and st